1> uurl_db:cool_stats("1").
** exception error: no function clause matching lists:foldl(#Fun<mochijson2.3.120627554>,
                                                            [44,"1",58,[34,<<"5">>,34],123],
                                                            {struct,[{<<"7">>,8}]})
     in function  mochijson2:json_encode_proplist/2
     in call from mochijson2:'-json_encode_proplist/2-fun-0-'/3
     in call from lists:foldl/3
     in call from mochijson2:json_encode_proplist/2
     in call from mochijson2:'-json_encode_proplist/2-fun-0-'/3
     in call from lists:foldl/3
     in call from mochijson2:json_encode_proplist/2